Home / 3,780.44-5,217.35-2,101.82

Finding the Fourth Proportional to 3,780.44, 5,217.35 and 2,101.82

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Solution

The fourth proportional to 3,780.44, 5,217.35 and 2,101.82 is: 2,900.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.44 : 5,217.35 = 2,101.82 : x
  2. Step 2: Convert to fraction form
    3,780.44/5,217.35 = 2,101.82/x
  3. Step 3: Cross multiply
    3,780.44x = 5,217.35 × 2,101.82
  4. Step 4: Simplify right side
    3,780.44x = 10,965,893.98
  5. Step 5: Solve for x
    x = 10,965,893.98/3,780.44
  6. Step 6: Final answer
    x = 2,900.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.